UPDATE: If you have a strong stomach, and a curiosity for the gruesome, head over here to TMZ to see what's left of the finger. It really is nasty ... but you can see six photos of it anyway. You've been warned!

Original story:

Well, that escalated quickly.

Beyonce and Jay Z's concert must have gotten pretty crazy on Saturday night!

According to Gawker, Pasadena police officers are saying that 11 people were arrested at the concert at the Rose Bowl. Eight of those people were arrested for public drunkenness and two for ticket scalping at the venue (because you know tickets had to be impossible to find).

As for the final man arrested that night? What did he allegedly do?

Roberto Alcaraz-Garnica, a 25-year-old resident of San Diego, was also arrested and, according to officials, was taken into custody for "suspicion of sexual battery and mayhem, legally defined as disabling or disfiguring a part of a victim's body."